“primary standard for airborne sound pressure”的概念、定义、翻译、参考文献-科学参考

单词	primary standard for airborne sound pressure
释义	primary standard for airborne sound pressure Encyclopedia 工学声学计量技术释 primary standard for airborne sound pressure空气声声压基准装置用于复现和保存空气声声压量值的装置。
随便看	let-notation Leto Leto family Letronne crater let some people get rich first Let's Shake It Let's Talk letter letter-by-letter encoding lettered-words letter for the publication of a book with a writer Letter from Jiang Zhuyun to Tan Zhu'an letter from King George Ⅲ of England to Emperor Qianlong Letter from Marx to Editor of the Otecestvenniye Zapisky lettering of chart Letter of Attorney of the League of Nations Entrusting France to Rule Togo letter of credence Letter on the Blind for the Use of Those Who Can See letterpress letterpress printing letter quality letters express item letters of Junius Letters of the Central Plains Letters on New Literature

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